"Israel arrested three elements of the national security who had been detained by the Palestinian Authority in Al-Jneid prison in Nablus for their unintentional killing of a settler two years ago," a PA official told AFP.

The Israeli military had no immediate comment.

The men had served a year in jail for the murder, and had returned to their police jobs 10 days ago after being freed last month, the PA official said.

Livnat was the nephew of Minister of Culture and Sport, MK Limor Livnat (Likud-Yisrael Beytenu).